<template>
  <div style="height:520px">
    <quill-editor class="editor" v-model="content" ref="myQuillEditor" :options="editorOption" @blur="onEditorBlur($event)" @focus="onEditorFocus($event)" @change="onEditorChange($event)">
    </quill-editor>
    <!-- 图片上传组件辅助-->
    <el-upload class="avatar-uploader" action="fakeaction" :headers="header" :show-file-list="false" :http-request="uploadSectionFile" :before-upload="beforeUpload">
    </el-upload>
  </div>
</template>
<script>
// 工具栏配置
const toolbarOptions = [
  ["bold", "italic", "underline", "strike"], // 加粗 斜体 下划线 删除线
  //["link", "image", "video"], // 链接、图片、视频
  ["image"], // 图片
  ["blockquote", "code-block"], // 引用  代码块
  [{ header: 1 }, { header: 2 }], // 1、2 级标题
  [{ list: "ordered" }, { list: "bullet" }], // 有序、无序列表
  [{ script: "sub" }, { script: "super" }], // 上标/下标
  [{ indent: "-1" }, { indent: "+1" }], // 缩进
  // [{'direction': 'rtl'}],                         // 文本方向
  [{ size: ["small", false, "large", "huge"] }], // 字体大小
  [{ header: [1, 2, 3, 4, 5, 6, false] }], // 标题
  [{ color: [] }, { background: [] }], // 字体颜色、字体背景颜色
  [{ font: [] }], // 字体种类
  [{ align: [] }], // 对齐方式
  ["clean"] // 清除文本格式
];

import { quillEditor } from "vue-quill-editor";
import getGlobalParams from "@/utils/getGlobalParams";
import "quill/dist/quill.core.css";
import "quill/dist/quill.snow.css";
import "quill/dist/quill.bubble.css";
import materialUploadNotice from "@/message/knowLedge-manage/Material-manage/MaterialUploadNotice"
import request from "@/utils/requestKnowledge";

export default {
  name: 'editor',
  props: {
    /*编辑器的内容*/
    value: {
      type: String
    },
    /*图片大小*/
    maxSize: {
      type: Number,
      default: 4000 //kb
    }
  },

  created() {
    this.fileUrl = getGlobalParams.get("KnowledgeImgUploadAddress");
    this.fileDownUrl = getGlobalParams.get("KnowledgeImgDownloadAddress");
  },
  watch: {
    value(newV, oldV) {
      this.content = newV;
    }
  },
  components: {
    quillEditor
  },

  data() {
    return {
      content: "",
      uploadfile: "",
      fileUrl: "",
      fileDownUrl: "",
      quillUpdateImg: false, // 根据图片上传状态来确定是否显示loading动画，刚开始是false,不显示
      editorOption: {
        theme: "snow", // or 'bubble'
        placeholder: "请输入文本",
        modules: {
          toolbar: {
            container: toolbarOptions,
            // container: "#toolbar",
            handlers: {
              image: function(value) {
                if (value) {
                  // 触发input框选择图片文件
                  document.querySelector(".avatar-uploader input").click();
                } else {
                  this.quill.format("image", false);
                }
              },
              // link: function(value) {
              //   if (value) {
              //     var href = prompt('请输入url');
              //     console.log('请输入url',href);
              //     this.quill.format("link", href);
              //   } else {
              //     this.quill.format("link", false);
              //   }
              // },
            }
          }
        }
      },
      // 素材类型
      imageType: getGlobalParams.get("imageType"),
      header: {
        // token: sessionStorage.token
      } // 有的图片服务器要求请求头需要有token
    };
  },

  methods: {
    onEditorBlur() {
      //失去焦点事件
    },
    onEditorFocus() {
      //获得焦点事件
    },
    onEditorChange() {
      //内容改变事件
      this.$emit("input", this.content);
    },

    // 富文本图片上传前
    beforeUpload(file) {
      // 显示loading动画
      this.quillUpdateImg = true;
      if (!(file.type === 'image/png' || file.type === 'image/gif' || file.type === 'image/jpg' || file.type === 'image/jpeg')) {
        this.$message.error("上传类型只能为图片格式!");
        return false
      }
    },
    // 自定义上传
    uploadSectionFile(params) {
      let file = params.file
      // 根据后台需求数据格式
      this.uploadfile = new File([file], new Date().getTime() + file.name, {
        type: file.type
      })
      const form = new FormData();
      // 文件对象
      form.append("file", this.uploadfile);
      // XMLHttpRequest 对象
      if (this.fileUrl) {
        var xhr = new XMLHttpRequest();
        xhr.open("post", this.fileUrl, true); //发送post请求
        xhr.onload = this.uploadComplete; //请求完成
        xhr.onerror = this.uploadFailed; //请求失败
        xhr.send(form);
      };
    },
    uploadComplete(evt) {
      //服务断接收完文件返回的结果
      // 获取富文本组件实例
      let quill = this.$refs.myQuillEditor.quill;
      let length = quill.getSelection().index;
      // 插入图片  res.url为服务器返回的图片地址
      quill.insertEmbed(length, "image", this.fileDownUrl + '/' + this.uploadfile.name);
      // 调整光标到最后
      quill.setSelection(length + 1);
      // loading动画消失
      this.quillUpdateImg = false;
      this.notice(this.imageType,this.uploadfile.name,getGlobalParams.get("imagePath"));
    },
    // 上传失败
    uploadFailed(evt) {
      // loading动画消失
      this.quillUpdateImg = false;
      this.$message.error("图片插入失败");
    },
    // 素材上传通知
    async notice(type, name, path) {
      let resBody = new materialUploadNotice()
      resBody.data.MatType = type
      resBody.data.FileName = name
      // resBody.data.FilePath = getGlobalParams.get("imagePath")
      resBody.data.FilePath = path
      let response = await request(resBody);
      // 未完成！！
      if (response.SYS_HEAD.ReturnCode == "000000") {
        this.$message({
          type: 'success',
          message: '上传成功!'
        });
      } else {
        this.$message({
          type: "error",
          message: "请求失败，错误码:" + response.SYS_HEAD.ReturnCode + "，错误信息：" + response.SYS_HEAD.ReturnMessage
        });
      }
    },
  }
};
</script> 

<style>
.editor {
  line-height: normal !important;
  height: 450px;
}

.ql-snow .ql-tooltip[data-mode=link]::before {
  content: "请输入链接地址:";
}

.ql-snow .ql-tooltip.ql-editing a.ql-action::after {
  border-right: 0px;
  content: '保存';
  padding-right: 0px;
}

.ql-snow .ql-tooltip[data-mode=video]::before {
  content: "请输入视频地址:";
}

.ql-snow .ql-picker.ql-size .ql-picker-label::before,
.ql-snow .ql-picker.ql-size .ql-picker-item::before {
  content: '14px';
}

.ql-snow .ql-picker.ql-size .ql-picker-label[data-value=small]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=small]::before {
  content: '10px';
}

.ql-snow .ql-picker.ql-size .ql-picker-label[data-value=large]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=large]::before {
  content: '18px';
}

.ql-snow .ql-picker.ql-size .ql-picker-label[data-value=huge]::before,
.ql-snow .ql-picker.ql-size .ql-picker-item[data-value=huge]::before {
  content: '32px';
}

.ql-snow .ql-picker.ql-header .ql-picker-label::before,
.ql-snow .ql-picker.ql-header .ql-picker-item::before {
  height: 100%;
  content: '文本';
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="1"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="1"]::before {
  content: '标题1';
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="2"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="2"]::before {
  content: '标题2';
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="3"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="3"]::before {
  content: '标题3';
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="4"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="4"]::before {
  content: '标题4';
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="5"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="5"]::before {
  content: '标题5';
}

.ql-snow .ql-picker.ql-header .ql-picker-label[data-value="6"]::before,
.ql-snow .ql-picker.ql-header .ql-picker-item[data-value="6"]::before {
  content: '标题6';
}

.ql-snow .ql-picker.ql-font .ql-picker-label::before,
.ql-snow .ql-picker.ql-font .ql-picker-item::before {
  content: '标准字体';
}

.ql-snow .ql-picker.ql-font .ql-picker-label[data-value=serif]::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value=serif]::before {
  content: '衬线字体';
}

.ql-snow .ql-picker.ql-font .ql-picker-label[data-value=monospace]::before,
.ql-snow .ql-picker.ql-font .ql-picker-item[data-value=monospace]::before {
  content: '等宽字体';
}
</style>